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Ride comfort analysis of interconnected hydro-pneumatic suspension with dynamic load-adapted variable damping
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DOI：10.1007/s11071-026-12874-1.png)
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Abstract
En 中文
To address the load-damping mismatch problem in the fixed damping interconnection suspension, a variable damping interconnection suspension structure based on the autonomous adjustment of the throttling area by the relative displacement of the piston and cylinder is proposed. A mechanical-hydraulic coupled vibration model considering the segmented stiffness and asymmetric damping characteristics was established, and the variable damping characteristics were analyzed. The results show that, compared with the fixed damping scheme, the RMS value of the vehicle body acceleration under empty, light, medium, heavy and full load conditions is reduced by 1.4%, 0.8%, 5.6%, 9.0% and 24% respectively. The middle suspension dynamic deflection and middle tire dynamic load are both reduced. The optimization effect is robust to road classes and vehicle speeds change. This structure can achieve load adaptive damping regulation without a control system, effectively improving ride comfort.
Keywords:
Hydro-pneumatic suspension
Interconnected suspension
Variable damping
Load-adapted
Ride comfort
Journal
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6
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1.4W
Citations:
4.1W
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Cited Papers